FR2640696B1 - Pompe hydraulique a piston - Google Patents

Pompe hydraulique a piston

Info

Publication number
FR2640696B1
FR2640696B1 FR888816726A FR8816726A FR2640696B1 FR 2640696 B1 FR2640696 B1 FR 2640696B1 FR 888816726 A FR888816726 A FR 888816726A FR 8816726 A FR8816726 A FR 8816726A FR 2640696 B1 FR2640696 B1 FR 2640696B1
Authority
FR
France
Prior art keywords
piston pump
hydraulic piston
hydraulic
pump
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR888816726A
Other languages
English (en)
Other versions
FR2640696A1 (fr
Inventor
Frederick A Powers
Daniel John Kvinge
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graco Inc
Original Assignee
Graco Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Graco Inc filed Critical Graco Inc
Publication of FR2640696A1 publication Critical patent/FR2640696A1/fr
Application granted granted Critical
Publication of FR2640696B1 publication Critical patent/FR2640696B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
    • F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
    • F04B9/105—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
    • F04B9/1053—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor one side of the double-acting liquid motor being always under the influence of the liquid under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Check Valves (AREA)
  • Reciprocating Pumps (AREA)
  • Safety Valves (AREA)
FR888816726A 1987-09-09 1988-12-19 Pompe hydraulique a piston Expired - Fee Related FR2640696B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/094,682 US4792291A (en) 1987-09-09 1987-09-09 Viscous damped valve for hydraulic pump

Publications (2)

Publication Number Publication Date
FR2640696A1 FR2640696A1 (fr) 1990-06-22
FR2640696B1 true FR2640696B1 (fr) 1992-08-07

Family

ID=22246548

Family Applications (1)

Application Number Title Priority Date Filing Date
FR888816726A Expired - Fee Related FR2640696B1 (fr) 1987-09-09 1988-12-19 Pompe hydraulique a piston

Country Status (4)

Country Link
US (1) US4792291A (fr)
DE (1) DE3842755A1 (fr)
FR (1) FR2640696B1 (fr)
GB (1) GB2226089B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4974495A (en) * 1989-12-26 1990-12-04 Magnavox Government And Industrial Electronics Company Electro-hydraulic valve actuator
AT401960B (de) * 1992-04-08 1997-01-27 Martin Dietmar Ing Pumpaggregat zur gewinnung eines hochgespannten mediums
US5363739A (en) * 1993-10-12 1994-11-15 Graco Inc. Reduced icing low friction air valve
US5984646A (en) * 1997-04-11 1999-11-16 Accuspray, Inc. Hydraulic motor for use with airless paint sprayer system
US20040045430A1 (en) * 2002-09-09 2004-03-11 Vangstad Michael D. Reciprocating hydraulic motor utilizing a ramped valve yoke with a tripping spring

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR632361A (fr) * 1926-07-21 1928-01-07 Pompe à membrane
US2119736A (en) * 1934-04-11 1938-06-07 Roko Corp Governed fluid operated pump
US2771907A (en) * 1949-01-29 1956-11-27 Joy Mfg Co Pilot controlled piston type reversing valve
US3053435A (en) * 1959-08-04 1962-09-11 Walter E Sanders Liquid pressure controlling apparatus
US4530645A (en) * 1979-09-21 1985-07-23 Hydraunit Venture Oil well pumping apparatus

Also Published As

Publication number Publication date
US4792291A (en) 1988-12-20
GB2226089A (en) 1990-06-20
DE3842755A1 (de) 1990-06-21
GB8829572D0 (en) 1989-02-08
FR2640696A1 (fr) 1990-06-22
GB2226089B (en) 1992-08-26

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Legal Events

Date Code Title Description
ST Notification of lapse